CN116130214B - Transformer convenient to outage detects - Google Patents

Transformer convenient to outage detects Download PDF

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Publication number
CN116130214B
CN116130214B CN202310413615.6A CN202310413615A CN116130214B CN 116130214 B CN116130214 B CN 116130214B CN 202310413615 A CN202310413615 A CN 202310413615A CN 116130214 B CN116130214 B CN 116130214B
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CN
China
Prior art keywords
conservator
iron core
oil
cavity
oil storage
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CN202310413615.6A
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Chinese (zh)
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CN116130214A (en
Inventor
张钱熠
陆春生
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Jiangsu Dingxin Electric Co
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Jiangsu Dingxin Electric Co
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Priority to CN202310413615.6A priority Critical patent/CN116130214B/en
Publication of CN116130214A publication Critical patent/CN116130214A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/022—Encapsulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/266—Fastening or mounting the core on casing or support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52—Outage or fault management, e.g. fault detection or location

Abstract

The transformer convenient for power failure detection comprises an oil storage tank, wherein a trapezoidal screw rod cavity with two through sides is formed in one side of the oil storage tank, a trapezoidal screw rod is arranged between the upper cavity wall and the lower cavity wall of the trapezoidal screw rod cavity in a rotating fit mode, and a conservator supporting seat penetrated by the trapezoidal screw rod is arranged in a sliding fit mode in the trapezoidal screw rod cavity.

Description

Transformer convenient to outage detects
Technical Field
The invention relates to the field of transformers, in particular to a transformer convenient for power failure detection.
Background
The transformer in the operation just needs to carry out a outage after a period and detects, and outage lifting core detects and need call the crane, because inside iron core soaks in fluid, need pass through steps such as oil drain, hoist and mount, and iron core operational environment requires highly, needs to ensure when the iron core exposes to the sun and detects that the weather environment of the same day meets the requirements, and the detection is accomplished the back and is needed to wash relevant step such as clean through fluid, and the process is loaded down with trivial details and needs a large amount of equipment and personnel's assistance.
Disclosure of Invention
The present invention is directed to a transformer that facilitates power outage detection, and solves the above-mentioned problems.
The technical aim of the invention is realized by the following technical scheme: the transformer convenient for power failure detection comprises an oil storage tank, wherein a trapezoidal screw rod cavity with two through ends is formed in one side of the oil storage tank, a trapezoidal screw rod is arranged between the upper cavity wall and the lower cavity wall of the trapezoidal screw rod cavity in a rotating fit manner, a conservator supporting seat penetrated by the trapezoidal screw rod is arranged in a sliding fit manner in the trapezoidal screw rod cavity, the conservator supporting seat is in threaded fit with the trapezoidal screw rod, a main conservator is fixed on the upper end surface of the conservator supporting seat, a main conservator cavity with two through ends is formed in the main conservator, sliding auxiliary conservators are arranged at openings on two sides of the main conservator cavity, an auxiliary oil cavity is arranged in the auxiliary conservator, and the opening of the auxiliary oil cavity faces inwards and is communicated with the main conservator cavity;
an oil storage chamber with an upward opening is arranged in the oil storage tank, a bottom shutoff valve is fixedly arranged at the bottom of the oil storage chamber, a guide pillar is fixed on the wall of a lower cavity of the oil storage chamber, an iron core lower side plate is arranged in the oil storage chamber in a sliding fit manner, guide holes which are penetrated up and down are arranged in the iron core lower side plate, the guide holes are in one-to-one correspondence with the guide pillars and are in sliding fit with the guide pillars, a one-way valve is fixed on the iron core lower side plate, an iron core supporting seat is fixedly arranged on the lower end surface of the iron core lower side plate, an iron core is fixedly arranged on the upper end surface of the iron core lower side plate, and an iron core cover plate is fixed on the upper end surface of the iron core;
the lower end face of the oil storage tank is fixedly provided with a supporting base, the lower side of the oil storage tank is provided with a pressure oil supply assembly, and the pressure oil supply assembly can supply oil in a unidirectional manner to the oil storage chamber and provide upward pressure for the lower side plate of the iron core;
the oil storage tank outside is equipped with gas protection subassembly, gas protection subassembly can be when detecting for the iron core provides clean and dry air and protects.
Preferably, the one-way valve only allows the oil supply to flow from top to bottom.
Preferably, the oil supply assembly comprises a hydraulic box fixed on the lower end face of the oil storage box, a hydraulic cavity is formed in the hydraulic box, a hydraulic plate which is in sliding fit with the hydraulic cavity is connected between the lower end face of the hydraulic plate and the lower cavity wall of the hydraulic cavity, a hydraulic stop valve A and a hydraulic stop valve B are arranged on the lower side of the hydraulic cavity, a cam is abutted to the upper end face of the hydraulic plate, a speed increaser is fixed on one side face of the hydraulic box, an output shaft of the speed increaser extends to be fixed with the cam, and a detachable hand wheel A is arranged on an input shaft of the speed increaser.
Preferably, the gas protection subassembly is including fixing air cleaner of terminal surface under the batch oil tank, air cleaner can filter dust impurity and dry air, the batch oil chamber inner chamber wall is fixed around being equipped with the notch of giving vent to anger, during the transformer operation the notch of giving vent to anger by the terminal surface covers down the iron core apron and seals, in the unable infiltration notch of giving vent to anger of fluid, batch oil tank one side terminal surface is fixed with the ammeter fixing base, be equipped with the ventilation chamber that both sides link up in the ammeter fixing base, ventilation chamber one side opening with notch intercommunication of giving vent to anger, ventilation chamber opposite side opening with can pass through detachable pipeline intercommunication between the air cleaner gas outlet, air cleaner filters the air of completion with the help of detachable pipeline passes through ventilation chamber and finally by the notch of giving vent to anger upwards discharges.
Preferably, be equipped with upward open-ended ammeter chamber in the ammeter fixing base, ammeter chamber lower chamber wall rotates and is equipped with the carousel, be equipped with the ascending hand wheel socket of opening in the carousel, ammeter chamber with be equipped with worm gear chamber between the chamber of ventilating, the last normal running fit in worm gear chamber wall is equipped with worm gear, worm gear's worm wheel axial one side extend with carousel fixed connection, worm gear's worm shaft extends to ventilate the intracavity, be equipped with in the ventilation chamber with the fixed impeller of worm gear worm shaft.
Preferably, be equipped with in the main conservator with main conservator chamber intercommunication and the ascending conservator exhaust hole of opening, main conservator chamber downside intercommunication is equipped with the downward conservator stop valve of opening, the conservator stop valve with the conservator exhaust hole all is located both sides between the vice conservator, conservator stop valve initial position is located the iron core upside.
Preferably, a core cover plate valve A and a core cover plate valve B which are vertically penetrated are arranged in the core cover plate, and the core cover plate valve A and the core cover plate valve B are respectively used for circulating air and oil.
Preferably, the lower side of the oil storage tank is fixedly provided with a one-way filter valve, the one-way filter valve can filter the oil passing through the oil storage tank, and the oil can only flow in one way in the one-way filter valve.
Preferably, a detachable hand-operated wheel B is arranged on the upper side of the oil storage tank, and the hand-operated wheel B is in spline fit with the shaft extending upwards from the trapezoidal screw rod.
Preferably, a detachable radiator is fixed around the oil storage tank, and the iron core cover plate is fastened with the oil storage tank through bolts.
In summary, the invention has the following beneficial effects:
1. compared with the traditional transformer, when the transformer is overhauled in a power failure, a crane is not required to be called for lifting operation, when oil is discharged, the capacity-expansion type conservator acts as an oil storage tank, the oil in the oil-immersed transformer is used as a medium for hydraulic lifting, and then an iron core in the transformer is lifted.
2. When the iron core is detected, an operator places the megohmmeter at a designated position, and flowing gas drives the megohmmeter driving assembly without driving the megohmmeter by hand, so that the wiring detection of the operator is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic view of an external perspective structure of an embodiment of the present invention with a heat sink removed;
FIG. 3 is an enlarged partial cross-sectional view of the portion A of FIG. 2 in accordance with an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of the interior of the headrest of FIG. 3 in accordance with an embodiment of the present invention;
FIG. 5 is a view in the direction B of FIG. 2 in accordance with an embodiment of the present invention;
fig. 6 is a schematic perspective view of an "iron core" according to an embodiment of the present invention;
FIG. 7 is a schematic perspective view of an embodiment of the invention after the oil reservoir is drawn away from the iron core;
FIG. 8 is a side cross-sectional view of the embodiment of the invention at C in FIG. 7;
FIG. 9 is a schematic partial cross-sectional view of an embodiment of the present invention;
FIG. 10 is a partial cross-sectional side view of an embodiment of the present invention for "reservoir" draining;
FIG. 11 is a schematic partial cross-sectional view of an embodiment of the invention lifting a "core";
FIG. 12 is a partial enlarged view of the embodiment of the invention at D in FIG. 11;
FIG. 13 is a schematic illustration of the communication of pipes in preparation for lifting a "core" in accordance with an embodiment of the present invention;
fig. 14 is a state diagram of the "iron core" according to the embodiment of the present invention when lifting is completed.
In the figure: 11. an oil storage tank; 12. a support base; 13. an oil storage chamber; 14. a guide post; 15. a bottom shut-off valve; 19. a heat sink; 20. an iron core cover plate; 21. an iron core; 22. a lower side plate of the iron core; 23. an iron core supporting seat; 24. a pilot hole; 25. a one-way valve; 26. a core cover plate valve A; 27. iron core cover plate valve B; 30. a main oil conservator; 31. a main oil pillow cavity; 32. auxiliary oil conservers; 33. an auxiliary oil cavity; 34. a conservator supporting seat; 35. a conservator shutoff valve; 36. a trapezoidal screw rod cavity; 37. a trapezoidal screw rod; 38. an exhaust hole of the oil conservator; 39. hand shaking wheel B; 50. a speed increaser; 51. hand shaking wheel A; 60. a hydraulic tank; 61. a hydraulic chamber; 62. a cam; 63. a hydraulic plate; 64. a hydraulic spring; 65. a hydraulic shutoff valve A; 66. a hydraulic shutoff valve B; 70. an air outlet slot; 77. a one-way filter valve; 80. an air filter; 81. the ammeter fixing seat; 82. an ammeter cavity; 83. a worm gear cavity; 84. a turntable; 85. hand-operated wheel sockets; 86. a ventilation chamber; 87. an impeller; 89. and a worm gear.
Description of the embodiments
The transformer convenient for power failure detection comprises an oil storage tank 11, wherein a trapezoidal screw rod cavity 36 with two through sides is formed in one side of the oil storage tank 11, a trapezoidal screw rod 37 is arranged between the upper cavity wall and the lower cavity wall of the trapezoidal screw rod cavity 36 in a rotating fit manner, a conservator supporting seat 34 penetrated by the trapezoidal screw rod 37 is arranged in the trapezoidal screw rod cavity 36 in a sliding fit manner, the conservator supporting seat 34 is in threaded fit with the trapezoidal screw rod 37, a main conservator 30 is fixed on the upper end surface of the conservator supporting seat 34, a main conservator cavity 31 with two through ends is formed in the main conservator 30, auxiliary conservators 32 capable of sliding are arranged at the openings on the two sides of the main conservator cavity 31, auxiliary oil cavities 33 are arranged in the auxiliary conservators 32, and the openings of the auxiliary oil cavities 33 face inwards and are communicated with the main conservator cavity 31;
an oil storage chamber 13 with an upward opening is arranged in the oil storage tank 11, a bottom shutoff valve 15 is fixedly arranged at the bottom of the oil storage chamber 13, a guide post 14 is fixed on the wall of a lower cavity of the oil storage chamber 13, an iron core lower side plate 22 is arranged in the oil storage chamber 13 in a sliding fit manner, guide holes 24 which are penetrated up and down are arranged in the iron core lower side plate 22, the guide holes 24 are in one-to-one corresponding sliding fit with the guide posts 14, a one-way valve 25 is fixed on the iron core lower side plate 22, an iron core supporting seat 23 is fixed on the lower end surface of the iron core lower side plate 22, an iron core 21 is fixed on the upper end surface of the iron core lower side plate 22, and an iron core cover plate 20 is fixed on the upper end surface of the iron core 21;
the lower end surface of the oil storage tank 11 is fixed with a supporting base 12, and the lower side of the oil storage tank 11 is provided with a pressure oil supply assembly which can supply oil in a unidirectional way into the oil storage chamber 13 and provide upward pressure for the lower side plate 22 of the iron core;
the outside of the oil storage tank 11 is provided with a gas protection component, and the gas protection component can provide clean and dry air for the iron core 21 for protection during detection.
Advantageously, the one-way valve 25 allows only the oil to flow from top to bottom.
The hydraulic oil supply assembly comprises a hydraulic tank 60 fixed on the lower end face of the oil storage tank 11, a hydraulic cavity 61 is formed in the hydraulic tank 60, a hydraulic plate 63 in sliding fit with the hydraulic cavity 61 is connected between the lower end face of the hydraulic plate 63 and the lower cavity wall of the hydraulic cavity 61, a hydraulic shutoff valve A65 and a hydraulic shutoff valve B66 are arranged on the lower side of the hydraulic cavity 61, a cam 62 is abutted to the upper end face of the hydraulic plate 63, a speed increaser 50 is fixed on one side face of the hydraulic tank 60, an output shaft of the speed increaser 50 extends to be fixed with the cam 62, and a detachable hand crank wheel A51 is arranged on an input shaft of the speed increaser 50.
Advantageously, the gas protection assembly comprises an air filter 80 fixed on the lower end surface of the oil storage tank 11, the air filter 80 can filter dust impurities and dry air, an air outlet notch 70 is fixedly formed in the inner cavity wall of the oil storage chamber 13 in a surrounding mode, the air outlet notch 70 is covered and sealed by the lower end surface of the iron core cover plate 20 when the transformer operates, oil cannot permeate into the air outlet notch 70, an ammeter fixing seat 81 is fixed on one side end surface of the oil storage tank 11, a ventilation cavity 86 with two through sides is arranged in the ammeter fixing seat 81, an opening on one side of the ventilation cavity 86 is communicated with the air outlet notch 70, an opening on the other side of the ventilation cavity 86 is communicated with an air outlet of the air filter 80 through a detachable pipeline, and air filtered by the air filter 80 passes through the ventilation cavity 86 through the detachable pipeline and is finally discharged upwards from the air outlet notch 70.
The utility model discloses a meter, ammeter fixing base 81, be equipped with upward open-ended ammeter chamber 82 in the ammeter fixing base 81, ammeter chamber 82 lower chamber wall rotates and is equipped with carousel 84, be equipped with the ascending hand wheel socket 85 of opening in carousel 84, ammeter chamber 82 with be equipped with worm gear chamber 83 between the chamber 86 of ventilating, the last normal running fit in worm gear chamber 83 chamber wall is equipped with worm gear 89, worm gear 89's worm wheel axial one side extend with carousel 84 fixed connection, worm gear 89's worm shaft extends to in the chamber of ventilating 86, be equipped with in the chamber of ventilating with the fixed impeller 87 of worm gear 89 worm shaft.
The main conservator 30 is internally provided with a conservator exhaust hole 38 which is communicated with the main conservator cavity 31 and has an upward opening, the lower side of the main conservator cavity 31 is communicated with a conservator shutoff valve 35 with a downward opening, the conservator shutoff valve 35 and the conservator exhaust hole 38 are both positioned on two sides between the auxiliary conservators 32, and the initial position of the conservator shutoff valve 35 is positioned on the upper side of the iron core 21.
The iron core cover plate 20 is internally provided with an iron core cover plate valve A26 and an iron core cover plate valve B27 which are communicated up and down, and the iron core cover plate valve A26 and the iron core cover plate valve B27 are respectively used for circulating air and oil.
Advantageously, the lower side of the oil tank 11 is fixedly provided with a one-way filter valve 77, the one-way filter valve 77 can filter the oil passing through, and the oil can only flow in one way in the one-way filter valve 77.
Advantageously, a detachable hand-operated wheel B39 is arranged on the upper side of the oil storage tank 11, and the hand-operated wheel B39 is in spline fit with the shaft extending upwards from the trapezoidal screw 37.
Advantageously, a detachable radiator 19 is fixed around the oil storage tank 11, and the iron core cover plate 20 is fastened with the oil storage tank 11 by bolts.
The application method of the invention comprises the following steps:
when the device is operated, the conservator shutoff valve 35 is connected with the top opening of the iron core cover plate valve A26 through a pipeline, the oil storage chamber 13 is filled with oil, the pipeline is used for communicating the oil storage chamber 13 with the main conservator cavity 31 so that the interior of the oil storage chamber 13 is always in a sealed state, the conservator exhaust hole 38 is in a sealed state, and a certain amount of oil exists in the conservator.
The bottom shutoff valve 15, the core cover plate valve B27 and the conservator exhaust hole 38 are all in a closed state.
When the equipment is stopped and is waiting for maintenance, removing the surrounding radiator 19, fixing the hand-operated wheel A51 on the input shaft of the speed increaser 50, closing the iron core cover plate valve A26 and the oil conservator cut-off valve 35, removing a pipeline between the iron core cover plate valve A26 and the oil conservator cut-off valve 35, collecting residual oil in the pipeline, rotating the hand-operated wheel B39 forward by an operator, driving the oil conservator support seat 34 to move downwards by the hand-operated wheel B39 through the trapezoidal screw rod 37, driving the main oil conservator 30 to move downwards by the oil conservator support seat 34 until the main oil conservator 30 moves to a lower limit position, stopping rotating the hand-operated wheel B39, connecting the bottom cut-off valve 15 and the oil conservator cut-off valve 35 through the pipeline, opening the bottom cut-off valve 15 and the oil conservator cut-off valve 35 (as shown in fig. 10), opening the oil conservator exhaust hole 38, connecting an exhaust port of the air filter 80 and the iron core cover plate valve B27, connecting an air inlet of the air filter 80 with an air pump carried by the operator through the pipeline, sliding and expanding the two side auxiliary oil conservators 32 in the main oil conservator cavity 31 until the auxiliary oil conservator cavity 33 moves downwards until the main oil conservator 31 is in the main oil storage space 13 which is the largest;
the external air pump is opened, and after being purified by the air filter 80, the air enters the oil storage chamber 13 through the iron core cover plate valve B27 by virtue of a pipeline, and as the air is positioned above the oil, the air can squeeze the oil in the oil storage chamber 13 to the lower side plate 22 of the iron core by virtue of the one-way valve 25, and then flows into the oil storage space formed by the main oil conservator cavity 31 and the auxiliary oil cavity 33 by virtue of the bottom shutoff valve 15 by virtue of the pipeline until the oil on the upper side of the lower side plate 22 of the iron core is completely emptied.
After the bottom shutoff valve 15 and the conservator shutoff valve 35 are closed, the pipelines between the bottom shutoff valve 15 and the conservator shutoff valve 35 are removed, residual oil between the pipelines is collected, and the collected oil is filtered and poured into the conservator through the conservator exhaust hole 38.
The bottom shutoff valve 15 and the hydraulic shutoff valve A65 are connected through a pipeline with a one-way valve, oil in the pipeline can only flow from the hydraulic shutoff valve A65 to the bottom shutoff valve 15, the conservator shutoff valve 35 and the hydraulic shutoff valve B66 are respectively connected on two sides of the one-way filter valve 77 through pipelines, oil in the pipeline can only flow from the conservator shutoff valve 35 to the hydraulic shutoff valve B66 after being filtered by the one-way filter valve 77, the exhaust hole of the air filter 80 is communicated with the ventilation cavity 86 through the pipeline, and after the pipeline connection is completed, the bottom shutoff valve 15, the conservator shutoff valve 35, the hydraulic shutoff valve A65, the hydraulic shutoff valve B66 and the valves of the one-way filter valve 77 are opened (shown in figure 11).
The manual shaking wheel A51 of the operator, hand shaking wheel A51 will drive cam 62 to rotate cam 62 and reciprocate in the hydraulic chamber 61 up and down under the elastic force of the hydraulic spring 64 after the rotational speed of the speed increaser 50 increases, the up and down reciprocating motion of the hydraulic plate 63 makes the space volume of the lower side of the hydraulic plate 63 regularly expand and contract, the oil in the hydraulic chamber 61 is discharged into the oil storage chamber 13 through the pipeline with the check valve when the hydraulic plate 63 descends, because the oil in the oil storage chamber 13 can gather on the lower side of the iron core lower side plate 22 under the effect of the check valve 25, when the hydraulic plate 63 ascends, the oil enters the lower side of the hydraulic plate 63 in the hydraulic chamber 61 through the pipeline after being filtered by the check valve 77 from the main conservator cavity 31, so reciprocating, the oil in the main conservator 30 continuously flows into the oil storage chamber 13 after being filtered by the hydraulic chamber 61, the oil in the oil storage chamber 13 continuously increases, the upper iron core lower side plate 22 is pushed to vertically upwards along the guide post 14 until the end of the air is moved to the end 14, the air generated by the external air pump in the above-mentioned process is discharged from the air filter 80 through the air vent 86 to the air vent hole 70 and the air core 21 through the air vent hole 70, and the air vent hole 21 is protected from the air dust in the environment.
When the megameter is needed to be used for measurement, a worker needs to connect the megameter with the transformer firstly, then the megameter hand crank is downwards placed in the ammeter cavity 82, the tail end crank of the hand crank is inserted into the hand crank socket 85, when purified air passes through the ventilation cavity 86, the air drives the impeller 87 to rotate, the rotating speed of the impeller 87 is reduced through the worm gear 89 and then drives the turntable 84 to rotate, the turntable 84 drives the hand crank of the megameter to rotate through the hand crank socket 85, the megameter can be replaced by hand crank, and meanwhile, the megameter is more stable than the hand crank, and the measurer only needs to read and record.
After the measurement is completed, the valves of the bottom shutoff valve 15, the conservator shutoff valve 35, the hydraulic shutoff valve a65, the hydraulic shutoff valve B66, and the one-way filter valve 77 are closed, the existing pipe connection is disconnected, and the oil remaining in the pipe and the hydraulic chamber 61 is collected.
The pipeline is restored to an oil discharging state (as shown in fig. 10), at this time, the bottom shutoff valve 15 is connected with the conservator shutoff valve 35 through the pipeline, the bottom shutoff valve 15 and the conservator shutoff valve 35 are opened, the oil liquid positioned at the lower side of the iron core lower side plate 22 in the oil storage chamber 13 is returned to the oil storage space formed by the main conservator 30 and the auxiliary oil cavity 33 under the gravity action of the iron core lower side plate 22 and the self gravity action, and in the process, the external air pump is always started to provide protection air until the iron core lower side plate 22 descends to the initial position.
Closing the bottom shutoff valve 15 and the conservator shutoff valve 35, removing the pipeline between the bottom shutoff valve 15 and the conservator shutoff valve 35, collecting the residual oil in the pipeline, connecting the air outlet of the air filter 80 with the conservator exhaust hole 38, opening the conservator exhaust hole 38, reversing the hand-operated wheel B39 by an operator, driving the conservator supporting seat 34 to vertically move upwards through the trapezoidal screw rod 37 by the hand-operated wheel B39 until the conservator supporting seat 34 drives the main conservator 30 to move to the initial position, and stopping rotating.
The oil in the main oil conservator cavity 31 flows to the oil conservator cover valve A26 and enters the oil storage chamber 13 through the pipeline under the self gravity by opening the oil conservator cut-off valve 35, the oil conservator cover valve A26, the oil conservator exhaust hole 38 and the oil conservator cover valve B27, the air in the oil storage chamber 13 is discharged through the oil conservator cover valve B27, the air purified by the air filter 80 is supplemented in the main oil conservator cavity 31 to keep the balance of the internal pressure and the external pressure until the oil in the oil storage chamber 13 is refilled to the initial state, the pipeline between the air filter 80 and the oil conservator exhaust hole 38 is removed, and the residual oil collected in the pipeline is poured into the oil conservator through the oil conservator exhaust hole 38 by an operator or the residual oil collected in the pipeline is recovered according to the actual situation and the new oil is supplemented into the main oil conservator cavity 31.
The heat sink 19 is reinstalled and the device is returned to the original power down state.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and implement it without limiting the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims (3)

1. The utility model provides a transformer convenient to outage detects, includes the batch oil tank, its characterized in that: a trapezoid screw rod cavity with two through sides is formed in one side of the oil storage tank, a trapezoid screw rod is arranged between the upper cavity wall and the lower cavity wall of the trapezoid screw rod cavity in a rotating fit manner, a conservator supporting seat penetrated by the trapezoid screw rod is arranged in the trapezoid screw rod cavity in a sliding fit manner, the conservator supporting seat is in threaded fit with the trapezoid screw rod, a main conservator is fixed on the upper end face of the conservator supporting seat, a main conservator cavity with two through ends is formed in the main conservator, sliding auxiliary conservators are arranged at openings on two sides of the main conservator cavity, and auxiliary oil cavities are arranged in the auxiliary conservators, are inwards opened and are communicated with the main conservator cavity;
an oil storage chamber with an upward opening is arranged in the oil storage tank, a bottom shutoff valve is fixedly arranged at the bottom of the oil storage chamber, a guide pillar is fixed on the wall of a lower cavity of the oil storage chamber, an iron core lower side plate is arranged in the oil storage chamber in a sliding fit manner, guide holes which are penetrated up and down are arranged in the iron core lower side plate, the guide holes are in one-to-one correspondence with the guide pillars and are in sliding fit with the guide pillars, a one-way valve is fixed on the iron core lower side plate, an iron core supporting seat is fixedly arranged on the lower end surface of the iron core lower side plate, an iron core is fixedly arranged on the upper end surface of the iron core lower side plate, and an iron core cover plate is fixed on the upper end surface of the iron core;
the lower end face of the oil storage tank is fixedly provided with a supporting base, the lower side of the oil storage tank is provided with a pressure oil supply assembly, and the pressure oil supply assembly can supply oil in a unidirectional manner to the oil storage chamber and provide upward pressure for the lower side plate of the iron core;
the outside of the oil storage tank is provided with a gas protection component, and the gas protection component can provide clean and dry air for the iron core for protection during detection;
the one-way valve can only supply oil liquid to flow from top to bottom;
the hydraulic oil supply assembly comprises a hydraulic box fixed on the lower end face of the oil storage box, a hydraulic cavity is formed in the hydraulic box, a hydraulic plate which is in sliding fit in the hydraulic cavity, a hydraulic spring is connected between the lower end face of the hydraulic plate and the lower cavity wall of the hydraulic cavity, a hydraulic shutoff valve A and a hydraulic shutoff valve B are arranged on the lower side of the hydraulic cavity, the upper end face of the hydraulic plate is abutted to a cam, a speed increaser is fixed on one side face of the hydraulic box, an output shaft of the speed increaser extends to be fixed with the cam, and a detachable hand wheel A is arranged on an input shaft of the speed increaser;
the air protection assembly comprises an air filter fixed on the lower end face of the oil storage tank, the air filter can filter dust impurities and dry air, an air outlet notch is fixedly arranged on the inner cavity wall of the oil storage chamber in a surrounding mode, the air outlet notch is covered and sealed by the lower end face of the iron core cover plate when the transformer operates, oil cannot permeate into the air outlet notch, an ammeter fixing seat is fixed on one side end face of the oil storage tank, ventilation cavities with two through sides are arranged in the ammeter fixing seat, an opening on one side of the ventilation cavity is communicated with the air outlet notch, an opening on the other side of the ventilation cavity is communicated with an air outlet of the air filter through a detachable pipeline, and air filtered by the air filter passes through the ventilation cavity through the detachable pipeline and is finally discharged upwards through the air outlet notch;
the main conservator is internally provided with a conservator exhaust hole which is communicated with the main conservator cavity and has an upward opening, the lower side of the main conservator cavity is communicated with a conservator shutoff valve with a downward opening, the conservator shutoff valve and the conservator exhaust hole are both positioned between the two auxiliary conservators, and the initial position of the conservator shutoff valve is positioned on the upper side of the iron core;
the iron core cover plate is internally provided with an iron core cover plate valve A and an iron core cover plate valve B which are communicated up and down, and the iron core cover plate valve A and the iron core cover plate valve B are respectively used for circulating air and oil;
the oil storage tank is characterized in that a one-way filter valve is fixedly arranged on the lower side of the oil storage tank, the one-way filter valve can filter the passing oil, and the oil can only flow in one way in the one-way filter valve;
the oil storage tank upside is equipped with detachable hand wheel B, hand wheel B with trapezoidal lead screw upwards extending's axle spline cooperation.
2. A transformer for facilitating power outage detection as defined in claim 1, wherein: be equipped with upward open-ended ammeter chamber in the ammeter fixing base, ammeter chamber lower chamber wall rotates and is equipped with the carousel, be equipped with the ascending hand wheel socket of opening in the carousel, ammeter chamber with be equipped with worm gear chamber between the chamber of ventilating, running fit is equipped with worm gear on the worm gear chamber wall, worm gear's worm wheel axial one side extend with carousel fixed connection, worm gear's worm shaft extends to the intracavity of ventilating, the intracavity of ventilating be equipped with worm gear worm shaft fixed impeller.
3. A transformer for facilitating power outage detection as defined in claim 1, wherein: the detachable radiator is fixed around the oil storage tank, and the iron core cover plate is fastened with the oil storage tank through bolts.
CN202310413615.6A 2023-04-18 2023-04-18 Transformer convenient to outage detects Active CN116130214B (en)

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Application Number Priority Date Filing Date Title
CN202310413615.6A CN116130214B (en) 2023-04-18 2023-04-18 Transformer convenient to outage detects

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Application Number Priority Date Filing Date Title
CN202310413615.6A CN116130214B (en) 2023-04-18 2023-04-18 Transformer convenient to outage detects

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CN116130214B true CN116130214B (en) 2023-06-20

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101931175B (en) * 2010-08-19 2012-10-17 河南省电力公司郑州供电公司 Method for replacing accessory of large transformer without discharging oil by vacuum oil extraction
CN112599341B (en) * 2020-11-30 2021-11-26 国网福建省电力有限公司电力科学研究院 Power transformer with short circuit alarm function
CN214750597U (en) * 2021-03-23 2021-11-16 武汉智领创联科技有限公司 Transformer on-line state automatic detection device

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